Scale.



No. 766,777. PATENTED AUG. 2, 1904, W. P. STIMPsoN. SCALE.

APPLIGATION FILED JUNE 24, 1901. H0 MODEL. 2 SHEETS-SHEET 1.

l nl @ammi ...M w. w w W PATENTED AUG. 2, 1904,

W. F. STIMPSON.

SCALE.

APPLIoATIoN FILED JUNE 24, 1901.

2 SHEETS-SHEET 2.

N0 MODEL.

Patented August 2, 1904.

PATENT GEEICE.

WALTER F. STIMFSON, OF DETROIT, MICHIGAN.

SCALE.

SPECIFICATION forming part of Letters Patent No. 766,777, dated August2, 1904.

Application filed .I une 24, 1901.

T0 (1r/ZZ 7.072.077?. t 711,002/ concern:

Be it known that I, WALTER F. STIMPsoN, a citizen of the United States,residing at Detroit, in the county. of Wayne and State of Michigan, haveinvented certain new and useful Improvements in Scales, of which thefollowing is a specification, reference being had therein to theaccompanying drawings.

The invention consists in an improvement in scales, and relates to thatclass of scales in which the weights are supported in proximity to theweighing-beam and are adapted to be mechanically applied to the latterwithout handling the weights, so that the scale may be quickly set toweigh any desired quantity within its capacity.

The invention consists in the novel construction of the scale, theweights, means for applying the weights to the scale and moving themtherefrom, and the construction of a balanced indicator.

The invention further consists in the construction, arrangement, andcombination of the various parts, as more fully hereinafter described,and set forth in the drawings.

In the said drawings, Figure lis a vertical central section through thescale, partly in elevation. Fig. 2 is a plan view thereof with segment Mremoved. Fig. 3 is a perspective view of the weight rack and arms. Fig.I is a detail elevation of one of the actuating-arms for the weights andthe locking means for positively locking the center of gravity of theweight in relation to the pivots of the beam. Fig. 5`is a centralcross-section through the upper part of the frame and scale, showing theconstruction and arrangement of the indicator or balance-pointer. Figs.6 and 7 are elevations of different forms of weights which may be usedin carrying out my invention. Fig. 8 is a vertical cross-section througha portion of Fig. 3.

A represents the scale-base, which, as shown, is simply a hollow castinghaving' the standards B and C rising from each end thereof andpreferably a central hollow standard D. The standard D, as shown in Fig.2, is preferably slotted at the top and is provided with the lateraleXtensi on E, which supports the fulcrumbearing F, upon which the pivotsF/ in the Serial No. 65,787. (No model.)

weighing-beam G are fulcrumed. As shown in the drawings, thisweighing-beam Gr eX- tends through the slot in the central standard Dkand its ends are bifurcated, as plainly shown in Fig. 2, thefulcrum-pivots F being secured to the furcations at one end. Theweighingbeam in this case I have shown as a multiplying-lever, and uponthe e'nd of the short arm are pivots a, upon which is pivoted theheadblock J. This head-block may have a suitable scoop-support, like J',as shown, or it may have a fiat plate or any other suitable means ofsupporting the goods to be weighed.

K is the usual steady-rod, formed either as a rod attached to or a lowerextension of the head-block J and passing through the standard B, itslower end being connected to a link f, pivoted at Z) to the base and atits opposite end to a link e, which in turn is pivoted to an arm L uponone side of the pointer 0. This pointer O is pivoted at Z to the base ofthe scale and is provided with a counterweight c so constructed as tocounterbalance the pointer O at all points in its movement. This pointertherefore is a counterbalanced or poised pointer which is used for thepurpose only of indicating if the scale is in balance or not. It will beseen that the pointer is actuated through a multiplying-leverconnection, the lever f and the arm /L of the pointer forming leverconnections, so that with a very small movement of the head-block or thegoods-support the pointer will have a wide range of travel. Forinstance, in the scale from which this drawing was made the goodssupporthas an up-and-down movement of not to exceed five-sixteenths of an inch,while the balanced pointer has a travel at its upper end of four inches.Thus the slightest overweight on the scale will be indicated by a markedmovement of the pointer, enabling' the dealer to balance his goods andweigh them very much more closely than with other constructions. It iswell known, for instance, that grocers and others usually put the paperin which the article is wrapped on the scale, and his paper costs but afew cents a pound, and as the usual commodities are more eX- pensivethan paper it is advantageous for the grocer to weigh the paper into theweight of IOO The pointerOis suitably curved, as shown in Fig'. 5, topass around the weighing-beam and projects through the slot in the topof the central post D, there being a segment M above the pointer with acentral indicating-point M, by which the balance of the scale may bereadily determined.

Upon the top of the post C is a head which supports the weights T andwhich therefore I will refer to as the weight-rack P. This rack has anumber of grooves or recesses P' 1n its upper face, in whichacorresponding series of circular weights T are supported free torotate. These weights are cut away or slotted, as shown at c' in Fig. 1or as shown in Figs; 6 and 7.

The weighing-beam above or beside the weights is provided with a rigidcrossbar upon which the weights are adapted to be moved. This cross-barI preferably form by means of the inwardly-extending pivots near theends of the furcations g of the weighinglever, and upon these pivots Iplace a tubular roller or sleeve Z. This cross-bar, whether formed inthis manner or in any other man ner, is arranged so as to move up anddown with the movement of the weighing-beam in the slot or cutawayportions of the weights and free therefrom.

If it is desired to apply a Weight to the crossbar, the'operator graspsan arm or linger V, attached to or formed with the weight, and byturning the weight upon its axis it will be saddled upon the cross-barof the weighinglever, as plainly shown in Fig. 1 and in the lowerportion of Fig. 2.

In order to perfectly locate the center of gravity of the weights inrelation to the pivots of the scale, I lock or iix those weights whenthey are moved upon the Weighing-lever by some suitable means at thepoint at which the weights are saddled upon the weighing-beam. This Iaccomplish in the construction shown by forming a notch m in each of thearms and arrange a notched tapering cross-bar 0 on the weighing-beam,withwhich the notched arm is adapted to engage, so as to prevent lateralmovement of the arm upon the cross-bar.

I/Vhile I prefer to use the construction of cross-bar shown, in whichthere is a hollow roller l supported upon transverse pivots, as itenables me to more accurately center the weights upon the scale inrelation to the other pivots, this is not essential where I employ othercentering means, such as the notch in the arms and the notched cross-barlast described, for this construction accurately locates the center ofgravity of the weights in relation to the pivots of the scale.

I may and preferably do provide a slotted cover Q for the weight-rack,as shown.

The construction shown in the drawings comprises a series ofl weights ofthe same size and value, there being live such weights of a capacity offour pounds, the capacity of the indicating-beam R, with its poise S, inthis case being also four pounds. Each of the arms V has a tablet W onits end, upon which is marked the weight. Upon the tablet of the firstweight is marked the figure 4, being the weight value of that weight.Upon the second is marked the figure 8,.being the value of the first andsecond weights. Upon the third tablet is marked the figure 12, upon thefourth the figure 16, and upon the fifth the ligure 20, these marksbeing applied upon both sides of the tablets. Means are providedcompelling the operation of the weights of lower denomination with anyweight of higher denomination, so that the indication will always becorrect. The means which I have shown for effecting this result consistsof the lugs y upon the sides of the levers V, which project from suchlever of higher denomination beneath the lever of the next lowerdenomination.. Thus in order to weigh eight pounds the operator willtake hold of the second lever (marked 8 and by turning it upon its axisfrom its position at the right hand of the weight-rack to its positionon the left hand thereof he Iwould carry with that arm the arm marked 4,which would thus apply upon the scale-beam two four-pound'weights, whichwould be indicated as 8 by the exposed marking upon the second arm. Ifthe 12 arm were operated, the other two arms would be carried with itand the '12 alone would be indicated, as shown in Fig. 3, in which threeof the arms are indicated partially operated. The indications upon thetablets of the 8 and the 4 arms will be covered up by the lugs y, sothat the only indication will always be the total of the operatedweights, the other figures being covered up, so that no confusion ispossible.

With this construction it is obvious that in actuating the weights totheir on position if all five weights are to be operated-that is, twentypounds weighed-the operator takes hold of the single arm (marked 20) andby its actuation carries with it all the other arms and their weights,and thereby applies them to the scale. In order to remove the weightsthus applied, the operator takes hold of the arm marked 4 and by meansof the interlocking lugs or couplers all the weights may be turned offof the weighing-beam. It is also obvious from the construction shownthat IOO IIO

this coupling arrangement for the weights does not interfere with theseparate actuation of the welghts in case they are desired to beyseparately applied, and I therefore have a device in which the weightsmay be separately applied or in which they may be coupled and all orpart applied by a single actuating device.

What I claim as my invention is- 1. In a scale, the combination ot' theweighing-beam, a weight-rack, a series of rotatable Weights supported onthe rack, a support on the .beam forsaid weights, arms on the weights bywhich the weights may be rocked from the weight-rack to rest upon thebeam, and overlapping lugs on the arms forming couplers betweenadjoining weights for the purpose described. l

2. In a scale, a series of weights, a weightrack, a weighing-beam, aseries of arms one for each weight, a lug on each arm above the firstone engaging beneath the arm on the weight of next lower denominationwhereby the movement of an arm of higher denomination carries with itthe weights of lower denomination, and means for exposing the totalWeight only of the applied weights.

3. In a scale, a weighing-beam, a series of weights, a separateactuating device for each weight for applying it to or removing it fromYthe weighing-beam and an indicating device for indicating only thetotal of a multiple of actuated weights.

4C. In a scale, a weighing-beam pivoted intermediate its ends, ahead-block pivotally supported thereon at one end, a transverse pivot atthe other end of suiiicient length to support all the weights, aweight-rack for supporting the weights adjacent to said pivot and aseries of movable weights on the rack, and means for moving the weightsfrom the rack and inverting said weights whereby they may rest directlyupon the pivot.

5. In a scale the combination of a weighinglever, and transverse pivotthereon, a seriesv of weights, and means for inverting the said weightsto cause them to rest upon or be removed from said pivot.

6. In a scale, the combination of a weighingbeam, a multiple oi' weightsadapted to be connected to said beam, an actuating device on each weightfor connecting it with the beam, and means for coupling said weightswhereby consecutive weights may be applied simultaneously by actuating asingle weight-applying device.

7. In a scale, the combination of a weighingbeam, a multiple of weights,means by which each weight may be separately applied to the beam, andmeans for connecting consecutive weights to move together by theoperation of one of the separate weight-applying devices.

8. In a scale, the combination of a vertically-movable weighing-beam, ofa multiple of weights adapted to be applied to the beam at any point inits vertical movement, and instrumentalities whereby any desired numberotl consecutive weights may be applied upon the operation ot' one ofsaid weights.

9. In a scale, the combination of a base, the weighing-lever, ahead-block pivoted on one end thereof, a steady-rod depending therefrom,a link pivoted to the steady-rod and to the base, a bell-crank leverpivoted to the base, one arm of which constitutes a pointer, and aconnection between the link and the other arm of said bell-crank lever.

10. In a scale, a base, a weighing-lever pivoted intermediate its endson the base, a headblock pivoted on one end thereof, a link pivoted to adownward extension from the headblock and to the base, a bell-cranklever pivoted to the base one arm of which extends upwardly andconstitutes a pointer, and a connection between the opposite arm of saidbellcrank lever and the link.

11. In a scale, a hollow base, a weighinglever pivoted intermediate itsends4 on the base, la goods -supporting head -block pivoted on one endthereof, a lever located below the weighing-lever pivoted within thehollow base and to a downward extension of said block, a counterweightedbell-crank lever one arm of which constitutes a pointer pivoted withinthe base and extending therethrough near the middle, and a connectionfrom the first-mentioned lever to the other arm of the bell-crank lever.

12. In a scale, the combination of the weighing-beam, of a transversepivot thereon, a series of slotted weights adjacent to said pivot, meansfor rocking said weights to engage the slot therein with and thereby tosupport them on the pivot, and a sleeve carried by said pivot upon whichthe weights are applied.

13. In a scale, a weighing-beam, a transverse bar at one end thereof, aseries of weights having bearing portions adapted to straddle saidbarand be supported thereby, in combi-y nation with means for locatingand holding.

the weights in fixed relation, and means for inverting the weights tocause them to rest upon or be removed from said bar.

14. In a weighing-scale, the combination with the weighing-beam, of aseries of weights adapted to be applied separately to the beam, astationary weight-support beside the beam on which the weights arenormally supported, and means carried by the weights for applying amultiple of the latter simultaneously to the beam.

15. In a weighing-scale, the combination with the weighing-beam, of aseries of weights normally disconnected from the beam and capable ofbeing applied separately thereto, means carried by the weights forshifting a multiple of the latterupon the beam simultaneously, by themanipulation of one weight.

16. In a weighing-scale, the combination with the weighing-beam, of aseries of detachable weights adapted to be applied sepa- IOO rately4 tothe beam, and means carried by the weights for applying the series tothe beam simultaneously.

17. In a weighing-scale, the combination with the weighing-beam, of aseries of detachable weights adapted to be applied separately to thebeam, and a single actuating device for simultaneously shiftingl amultiple of weights in the series upon said beam.

18. In a weighing-scale, the combination with the weighing-beam, of aseries of weights normally disconnected from the beam and adapted to beapplied separately thereto, a series of arms carried by the weights, andconnections between said arms, whereby upon the actuation of one weightat one end of the series the series can be operated.

19. In a weighing-scale, the combination of a weight-rack, a series ofslotted weights thereon, a transverse bar or pivot on the beam moving inthe slot of the weights, and means for rotatably reversing' said weightsabout the bar or pivot to rest thereon or be removed to the weight-rack.

20. In a weighing-scale, the combination with the weighing-beam having aforked end, ,n of knife-edge bearmgs upon thelend portions l WALTER F.STIMPSON.

Witnesses:

M. B. ODOGHERTY, H. C. SMITH.

